I have no idea what _____ while I was asleep.
| A．has happened | B．could happen | C．had happened | D．happened |
The meaning of the word “nice” changed a few times it finally came to include the sense “pleasant”.
| A．before | B．after | C．since | D．while |
The exact year Angela and her family spent together in China was 2008.
| A．When | B．where | C．why | D．which |
After his journey abroad, Richard Jones returned home, ___.
| A．excited | B．exciting |
| C．being excited | D．having excited |
I like __________in the early morning when the air is fresh and I can take a walk around the garden.
| A．that | B．it | C．which | D．what |
He is a successful businessman and he ___ his success more to luck than to ability.
| A．attaches | B．adapts |
| C．owes | D．fastens |